Electrical purification of flour, grain, &amp;c.



PATBNTBD MAR. 3,1908. J. L. LAWSN.

ELECTRICAL PUFICATION 0F FLQTIR, GRAIN, 6m.

APPLICATION' FILED .TUNE 22 1905.

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J. L, LAWSUN.

ELECTRICAL PURFIGATION 0? H,

APPLUA'FI FILED UNE 22. A

E'TENTED MAR. 3, 1968.

I SHEETS-SHEET 2,

WITNESSES Mm@ (MJL INVENTOR ATTORNEYS No. ESGWJL J L. LAWSGN.

ELECTRICAL PURIFGATIGN GF FLOUR, GRAIN, 50.

APPLIGAToN FILED :mm 22. ma.

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w VrNEs sss mvmos Y ATTO RNEYS No. 880,891. PATENTE MAB.. s, 1908.

, J. L. LAWSON. ELECTRICAL mamma@ o? moua, GRAIN, sw.

FPLIGATIFN ILED JUNE 23.1906.

SHEETS-SHEET 4 a {fw} Hf T Lr/ i. I WTNESSES Y INVENTGR ATTDRNEYS LLECTRICAL PURII-CTION OF FLOUR, GRAIN, ac.

No. 880.891. Sgiscatcm nl" Letters Patent.

Application t .Tune 51:1

sox, a stihjrrt mi' thv hing' til' (itva. 'ritaiti v than, grain, rii't tutti othir sulistaiuts hlvi separating the htait. t-hah, tihruus matter; uml int'vrinr qualitws it tht-stsubstitut-vs? Patent-ed March 3, 1908.

Serial No. 32:1,8SL

lvtnrrittg tu these tlra\\.'ings:-'i`hree or umn? trays lil. ti consisting of' uitermate Fig. t) ;iwn a tapitl rt-ciprtwating movemt-nt hy moans tif; wruntrics as thscrihctl i'vhm'. iim'e tht* trays :l surits ai' electricallr wimtf'tttl tilalvs (Fig. 3l is made. to

www tralrswrsvlvA The impurit'ivs are at lwinf; lclhrtr-tl hy the transverse movenwnt tit" tht` platosaml rtrpoilotl mi tmwhing these piatvs, art` tlruppw through the spares H1 iatn thv .st-roars (li Fig. l) and are dist'harggctl through thu spams, R. The good taatvrial is mit attractvtl amt 'cvontually furm ol' puritic'atiwn at prestan in ust'. tht-rv f still romain impnrxtts mittal in sm am! pravlimvs lnwu thi` tlisrhargu. spout R Fig. 1.

In thtl tup swtimi et' the umchine Fig. 1 a svrius ut' vltctricaily (mittente-tl wires N" Fig. I is umile to take thtplarv of the brass i plains. fiese wires :mx prci'vrtily made of brass ami art plat-vd parallel to each other autl tu the ulrtmwls ot thetra)v 1i Fig. 1 bettwath tlm'h. .liht spacvs hetwevn them mrj hut wili not fxt'tttl one inch. `i :ihn-cv thvI vlct'tritivtl wires are pim-titrarrmvtiu V sha-poil trays N2 Fig'. 1:v

' thvsv mais way also Tary somewhat in their j :nt'y ni' nl) Lln'vntinn. my .sani mwntmxi :tml thtl mamwr it varryhut shuuhl noty exmed one atlth nr haltl an tuch 1n depth: theA itt h;

hrm-ahh, Tlv-sc trays run parnlhi to the amalfi: ray anti aratixml in it, thus sha1- in;r its rvcil`rwatitig ntm'tnttnt. Thr` 0h- `iwi nl this arraugvmcnt is to hasten tht` remm'al nl' hruimy aml`ihltl` partichs. The iatpttritivs arv aitractutl out. ut the` rhannuls h v thv vlmiriliml wirts :mtl the heavier partivlvs aiming their; are tlroppml through tht` spam-s.' in thvl womhxl tuy: th@ lighter partivf's` pass hut-W901i the wires :11rd au' thx-tm n into tho tin trays alture. thvm. They arv varriml down tlrso trnys owing to thtruriprtwating mut-inn anti arv tiischargetlat; tht` sprint. X Fig. l. llatr-s ur wirr-s for )iurpusvs ni' attractit'm may ha'- plat-ttl in various strtims as thsirrti. ln Fig. l tht` top soctiun only is shown cquippctl with. wires and tin trays, but this could' he (toxic through- Huis K i Fig. 1 T denotes they tfctl hopper: S the shvut iron which hthl twixinst, the feed vmtl i' h y tht` spring X, .vhic i may be t-ightuuml nr rvlztxml h mums of a www; Y rcprvsvvts a prille-y for drivingD tht. t'td roll U; ;\l mimics thel brass vluvtriiied plates; i denotes the brass electriticd wires; Nz delll) able in Fig.V 2. h to necting the other two spindles which move support the trays N2: A the nood strip to which they are. screwed, and B the vulcan ite to insulate the hangers l from the plates. The hangers Pare lixed hy thumb screws l to spindles which are more clearly notice- The cross spindlev G conin slides is connected by a rod lo the eccen tric E, driven bythe pulley l. Only one lateV is shhwn in complete detail (lowest efthand), but each plate has'siniilar cont nections, and the three shafts driven by the pulleys Elyrun right across the machine and each drives three eccentrics viz. t one for each brssvplate. if a series of wires be used instead o plates the transverse movement 2o ieven by side eccentrics is not required. J1

notes the louver boards to take the good .material down to thenext tray. R dcenotes the screws for conveying inferior material to the discharge spout Rl. 5I de- -i notes the false bottom into which impuri- -ties are repelled and eventually discharged down the spout LP. K represents the tray pictured in Fig. 4. V re resents the main driving shaft of the mac .ine which drives So the tra K by means of eccentric-s on the shaft, t e brosses of which are attached to the tray by aLsxplring V2. Y denotes the ain ey. Y drives Yi which drives the s t V3 which again drives the sa; ton tray. Yz drives the pulley Y5 which drives the shaft V1, the eccentiics of which drive 4the foot tray in a way similar to that above described, Y3 drives the ulley Y* which drives the small cross spin le, which vA drives 'the screw 1.11. X1 denotes the pulley which drives the ey El. driving the eccentric shaft,which drives the electrified plates as above described. W represents the mail;

electrical'connection to the source of hi rh4 tensionv electricity.

W1 represents t e smaller rlcomiections between the various plates. lA larger number of tray: might be ut .inV the same frame, if they were made 'ke the top tray K in Fig. E, with a false 5 0 bottom M, thus saving the space taken up by the/screws R.

2 represents an end view of purifier and is given to illustrate the action of the eccentrlcs in driving the plates. GJ repre.-

'sent-s the spindles which move in slides G2 r and are connected by the cross spindle G as shown inlig. l: other arts are lettered and described 1n Fig. 1. he arrangement i f ci tin trays'l2 above the tray K is given in e0. the top section ot' the machine: the electrified -wires are denoted by N2 and are stationary:

all other parts are as lettered and described in Fig. 1.

Fig. 3 denotes the brass plates, denoted by a5v N in Fig. 1. A* denotes a Wircconnecting plates, and A thin strips of wood between the plates. held in position by the pressure of upon the brass plates. No drawing is 7e'ivcn oll the brass electrified wires N* Fig. l :is this would merely. consist o a muchos' of parallel straight. lines close toga-tuer having: supports A., insulation B, connections ll" and hangers l as in Fig. 3.

Fig. 4 denotes the tray represented by K in Fig. l. il re resents the channels down which the material flows. lll represents the spaces through which 'the impurities are repelled. ,l represents the space through lwhich the material falls to the louver boards J (Fig. 1). o special drawingl is given of the V shaped tin trays N2 Fig. 1 as this would consist merely of a number of parallel straight lines with discharge spout similar to J Fig. 4. 'A sectional view of these is given in Fig. 2.

Fig. 5 represents the wire grid; W2 the .two parallel wires which, when the grid is in its workin'y position, rest exactly above the center of the channels li of the wooden tray, 4. B represents the vulcanites which insulate the. electrified grid from the tray to which thegl tasten it. There are three of these grids for each wooden tray.

Fig. 6 represents the tin channels which are' placed above the electrified wires; H2 the V-shapod tin trays; Ha the space throuffh which the particles are projected into t e trays; Z the wooden frame to which the trays H2 are fixed by screws Z; J1 the discharge spout from the tin trays H2. vThere is one tray as depicted in Fig. E for each wooden tray as shown in Fig. 4.

Fig. 7 a sectional view given to illustrate the action of the coinbinedapparatus. When the wires We are electriied and material is passing down the channel H the following act-ion takes place. The best material is not attracted, the matter second in quality is' attracted gently by the wires 72 and Hung' from them on either side through the spaces H1.' The very worst material is attracted so violently by the wires that it rises above them and is then repcllcd into :he tin trays- H2. The discharge spouts of H2 and H can not be indicated in this drawing.

vHaving now described my said invention what I claim 'as new, and desire to secure by Letters Patent is:-

1. The method of purifying flour, grain; rice and like cereals, consist-ini:r in feeding the same in comniinnted condition in a series of shallow streams slightly separated from one another, below a super osed conductor charged with high tension e eetricity whereby the impurities in said cereals are lifted from saogssxq. l 8A The methoftof puriying Hour, greci-nr 5 rice and like cereals, consisting in feedmg the same 1n commmuted condltlon m a senes l l I I v of Shallo'w streams slightly separatedfiom 15 one another, below a'superposed conductor' charged u ith hightensin electricity whereby the impurities in said cereals are' lxfted from' said stra-ams and re elled so as to fall between the streams, su )stantielly as described. 20

In testimony whereof I have' signed my name to this speccation, in the presence of 

